Semiautomatic coil-winding mechanism



-C. A. WICKSTROIVI.

SEIVI'IAUTONIATIC COIL WINDING MECHANISM.

APPLICATION FILED SEPT. 22, I919- wmag, Patent-ed Oct. 3, I922.

Patented @et. 3,, i922.

CHARLES A. WICKSTROM. OF CHICAGO, ILLINOIS, ASSIGNOR T WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION 013 NEW YORK.

SEMIAUTOMATIC COIL-WINDING MECHANISM.

Application filed September 22, 1919. Serial No. 325,443.

T 0 aZZ whom it may concern:

Be it known that 1, CHARLES A. \Vron- STROM, a citizen of the United States, reslding at Chicago, in the county of Cook and State of Illinois, have invented certaln new and useful Improvements in semiautomatic Coil-Winding Mechanism, of which the following is a full, clear, concise, and exact description.

This invention relates to semiautomatic coil winding mechanism, and particularly to an attachment for such mechanism for the winding of universal wound coils. This invention is especially adapted for use with the winding machine shown and described in U. S. patent to Arthur H; Adams No. 1,117,620, issued November 17, 1914.

The general object of the invention is to provide a simple mechanism which can be quickly attached with very few alterations to the above-mentioned type .of winding machine for the purpose of winding electrical coils by the method now known as the universal wind. In this. method the winding wire and insulating strand are w'ound-on the core in alternate layers with the wire wound very close and the insulating strands laid diagonally across the core. At the ends of the coil abutments are built 'up of the insulating strands which take the place of separate end flanges or other retaining means, and at the completion of the wire winding a covering of the same insulating strands is wound on the coil. Preferably the attachment comprises a supporting frame carrying a pivoted arm adapted to be moved about its pivot to distribute the strand on the coil by a cam member which is driven from the winding arbor driveat a suitable speed.

Fig. '1 is a fragmentary plan. view of a machine of the type shown and described in the aforesaid Letters Patent with my invention attached thereto;

Fig. 2 is an enlarged end view of the'invention, showing also the relation of the winding arbor and the guiding, arm of the wire distributer;

Fig. 3is a plan view of Fig. 2 with the guiding arm of the wire distributer omitted;

Fig. 4iis a greatly enlarged fragmentary plan view of the insulating strand distributer arm and the windingspindle with a coil partially wound thereon showing the position or the strand distributing finger while building an abutment at the end of the coil, and

Fig. 5 is a perspective view of the cam for actuating the insulating strand distributer.

As shown in the drawings, the insulating strand distributing attachment is mounted on a supporting frame 11 which is fastened to the base 12 of the winding machine in front of the winding arbor 13. Carried by vertical standards 14 and 15 from the frame 11 is a shaft'16. The standard 14 has secured thereto an arm which extends forward and up and carries at its end a guide wheel 21. Mounted on the lefthand end of the shaft 16 is a pulley wheel 23. Secured on the main drive sha 't 24 of the winding arbor 13 and to the right of a motor 25 which drives the winding machine is a pulley wheel 26 which through belting 27, pulley wheels 28 and29 and belting 30 drives the pulley wheel 23. Pulley wheels 28 and 29 are carried by a bracket suitably mounted upon the base 12 of the winding machine. The shaft 16 is revolved through the pulley wheels and the belting 1n the same direction as the winding ar- .bor 13.

Secured .to the right-hand end of the shaft 16 is a wheel 33 provided with a cam surface 34 on one side. Pivotally carried on a standard 35 which is secured to the frame 11 is a distributing finger 36 equipped with guide eyes 37 and 38 at one'end and at the other end with a roller 39 which is kept in engagement with the cam surface 34 by a coil spring 42 suitably carried by the standard 35. i

The cam surface 34 has two inclined faces 43 and 44 situated 180 apartwith high and low flat faces 45 and 46 connecting them.

The particular type of coil 48 illustrated in the drawings is a receiver coil for mounting in receivers of telephone equipment. On a reduced portion 49 of the winding arbor 13 and between flanges 50 ,and 51 is mounted a paper core 52 on which the coil is wound. The flange 51 is secured to a section 53 of the arbor 13 which is detachablysecured to the other section. The inside edges of the flanges 50 and 51 on the arbor 13 arelocated an equal distance from a line drawn from the pivotal point of the distributing finger 36. -The wire 55 is led to the arbor from guide wheels 56 and 57 mounted on a distributing arm 58 which is actuated by the mechanism as shown and described in the aforesaid Letters Patent.

The insulating strand 59 is run over the .guide wheel 21 and then through the guide eyes 37 and 38 to the arbor.

As shown in the drawings, the cam" surface 34 is designed to lay the insulating strand 59 diagonally across the-coil to the right and then to the left as viewed in, Fig.

the face of the roller will cause the dis' tributing finger 36 to be turned about its pivot to the right or to the left, thus causing the insulating strand to be laid diagonally across the coil from one abutment to the other. The spring 42 insures that the roller will always follow the cam surface.

What is claimed is: v

The combination with the frame and arbor driving mechanism of a semi-automatic winding machine, of a pivotallysupported strand distributing finger, aspring for reciprocating said finger 1n one direction, a rotatable cam for reciprocating said finger in the opposite direction, a driving shaft for said cam, a pulley carried by said shaft, drive pulleys forming a driving connection With the shaft and the arbor driving mechanism, a bracket for said pulleys adapted to be secured to the machine frame, and a bracket for said finger and said cam shaft adapted to be secured to said machine frame.

In witness whereof, I hereunto subscribe my name this 4th day of Sept. A. D., 1919. CHARLES A. WICKSTROM. 

